Window



June 4, 1935. H. G. v. RYDAHL WINDOW Fild Jan. 22. 1954 3 Sheets-Sheet 1 fnwre'n for? June 4, 1935. H. G. v. RYDAHL 2,003,723

WINDOW Filed Jan. 22. 1954 5 Sheets-Sheet [nvzn for.

m fw zbz Z M Patented June 4, 1935 UNITED STATES WINDOW HermanGustaf Victor Rydahl,

Viggbyholm, Sweden Application January 22, 1934, Serial No. 707,764 In Sweden December 5, 1933 1 Claim.

This invention relates to a window of the kind comprising a sash frame which is raised and lowered within a window frame through the medium of racks and pinions, and the invention consists in forming the window frame from channel irons and 2 bars the latter of which are so connected to the vertical frame members as to form guides for the racks and for the glass pane, the racks, and a cross bar connecting the lower ends thereof, being adapted to serve as sash frame and to support the glass pane.

A very simple and easily constructed rack operated window is obtained in this manner.

Means are also provided for covering the open window with a mosquito net, the'latter being attached to the sash and to a spring roller on to which the net winds.

Fig. 1 of the accompanying drawings represents an inside view of a window constructed according to the invention in section on the line II of Fig. 2 is a longitudinal section of the window taken on the line IIII of Fig. 1,

Fig. 3 is a fragmentary view of the upper part of the window,

Fig. 4 is a cross-section on the line IV-IV of Fig. 3,

Fig. 5 is a fragmentary view of another portion of the window,

Fig. 6 is a vertical section of the latter,

Fig. 7 is a section on the line VIIVII of Fig. 5 on an enlarged scale,

Fig. 8 is a fragmentary view of the window portion carrying the sash operating device,

Fig. 9 is a section on the line IX--IX of Fig. 8,

Fig. 10 is a front view of the sash operating device in section on the line X-X of Fig. 8,

Fig. 11 is a section on the line )fl-XE of Fig. 10,

Fig. 12 is a fragmentary view of the window, partly in section, showing its connection with a mosquito net.

Fig. 13 is a cross-section of the device shown in Fig. 12,

Fig. 14 is a sectional view showing a modified mosquito net arrangement,

Fig. 15 is a cross-section of the arrangement shown in Fig. 14,

Fig. 16 is an enlarged fragmentary view of the mosquito net arrangement in section on the line XVIXVI of Fig. 17, and

Fig. 17 is a section on the line XVII-XVIII of Fig. 16.

The window comprises a frame built of channel iron ,and having the usual vertical members i and 2 and the horizontal members 3 and 4. In the arrangement shown in Fig. 1 the upper portion of the frame is divided off by a cross bers to form guideways for two vertical'racks I2 and 13. The said bars 8 and It! at the inner side of the window are detachable in order to give access to the glass pane and to the racks. Secured to the lower ends of the two racks is a crossbar M which supports the glass pane I and forms together with the latter a slidably mounted sash frame. Suitable retaining members are provided at the upper ends of the racks for engagement with the glass pane which, in the closed position of the window, engages in a slit in or between lips formed on the cross member 3. Notches I5 are made in the crossbar l4 for the reception of a suitable tool whereby the glass pane can be lifted out of the sash after the removal of the respective inner Z-bars.

The window frame extends into the wall below the window opening so that the sash can be lowered into the wall for clearing the opening. In buildings of several stories, the arrangement is preferably such that one window frame can be supported directly on another, as indicated in Fig. 1.

The up and down movement of the sash is effected by means of pinions 22 and 23 which are mounted on a shaft 2| and which mesh with the racks l2 and [3 respectively. Angle irons l6 and 11, run across the window frame below the window board 5 and secured to the window frame I and 2, are fitted with plates I8, I!) and which carry the bearings for the shaft 2!. The centre plate 20 is also provided with bearings 21 for a shaft 26 and with a further bearing for a shaft 29. The latter is fitted with a gear wheel 30 which meshes with a pinion 28 secured to the shaft 26. A worm wheel 24 on the shaft 2| meshes with a worm on the shaft 26, and the shaft can thus be operated by means of a crank handle 3| applied to the square end of the shaft 29. The mechanism is enclosed in a casing the front panel 32 of which is detachable and normally locked into position by means of a sliding bolt 33.

The windowsill is preferably covered with a copper or like plate 46 provided at its inner edge with a rubber strip 47 arranged so as to bear against the glass pane I, partly for the purpose of excluding rain and. partly for keeping the pane clean.

Means may be provided for pulling a mosquito net across the open window simultaneously with the sash being lowered. Such an arrangement is shown in Figs. 12 to 17. The net 34 is adapted to wind like a blind on to a spring-controlled roller 35 which is enclosed in a casing. Figs. 15 and 1'7 show the roller 35 enclosed in a casing 36 attached to the cross member 3. In the absence of the latter and of the pane 6, a casing 36' may be employed which is adapted to hold the roller in the recess formed where the frame member 3 adjoins the wall. In both instances the free edge of the net is connected to a bar 31 which extends across the entire width of the sash frame and which is fitted with a pair of parallel metal strips 38 and 39 adapted to receive the upper edge of the window pane 1 between them, as shown in Fig. 17. At each end of the structure transverse strips 40 and 4| are provided which form between them a guideway for a bolt 42 adapted to be slid into engagement witha notch in the adjacent rack for fastening the structure together with the net to the sash frame. The bolt carries an operating handle 43 which projects through slots in the strip 38 and in the guide lip 44 of the cross member 3. Guide rods or rollers 48 and 49 are provided for the net which is pulled out as the sash is lowered and covers the window opening. On the window being closed the net winds automatically on the roller 35. The bolts 42 allow the net to be detached from the sash frame when its services are not required.

Owing to the strength of the window frame the latter can be used as a safe anchorage for a life-saving apparatus, and it may for this purpose be provided with eyelets (Fig. 1) to which the apparatus may be connected.

Although the illustrated arrangement is adapted for use with a single glass pane, it is evident that the sash may, if required, be fitted with a double pane, the racks l2 and I3 and the crossbar l4 being in that case provided with spacing beads for the two portions of the pane.

, The described window construction may be varied in other respects without departing from the'spirit of the invention.

I claim: Y

A window comprising a window frame built of channel iron, a pair of Z-bars secured with one set of end flanges to each vertical frame member with the middle flanges in alignment with each other and spaced from the channel iron and with the free end flanges spaced from each other in the median plane of the channel iron, a pair of racks guided in the spaces between the Z bars and the channel irons, a cross bar connecting the lower ends of the racks to form a sash frame, and a glass pane supported on said cross bar and guided in the spaces between the free end flanges of the 2 bars.

HERMAN GUSTAF VICTOR RYDAHL. 

